It is mostly cultivated in courtyards or orchards in southern provinces and regions of my country. The peel and leaves contain aromatic oils, which have a strong fresh fruit fragrance and are used as raw materials for flavoring; the fruits and flowers are both used for medicinal purposes. Bergamot is a cultivated variety with a long history of cultivation in my country. It is mainly produced in Chaozhou, Zhaoqing, Gaoyao (Heleshui area), Deqing, Yunfu, Sihui, Yunan and other places in Guangdong. It is called "Guang Buddha's Hand" and is an authentic product. . Among them, the bergamot fruits produced in Chaozhou and Zhaoqing are large and of the best quality, and the processed product "Phnom Penh White Meat" enjoys a high reputation in domestic and foreign markets. Bergamot is one of the "Top Ten Guangdong Medicines" of Guangdong's authentic medicinal materials, and Chaozhou Bergamot is one of Guangdong's famous fruits. The production base of Bergamot should be selected in an area suitable for growth, and at the same time pay attention to the geography of "authentic medicinal materials" and the concept of "origin". Ruguang Buddha's Hand is mainly distributed in Chaozhou City, Zhaoqing City, Yunfu City and other places.